Provide a flutter app without google or apple store

Question

Is it possible to publish a flutter application on a website with an download button and not in google or apple store?

Answer 1

For android yes you can export the app as an apk and host it in your website then let visitors download it and install it, any android will get a warning that this app may not be safe to install if user accepts he can proceed to install it and it will work, but in the future if you decided to upload the app to Google play store, its against google play terms to do that, they will block your app from play store until you delete the unsigned version from your website.